Superlattices and Microstructures volume 43, issue 5-6, P512-517 2008 DOI: 10.1016/j.spmi.2007.07.018 View full text
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Franz X. Bronold, Holger Fehske

Abstract: Motivated by recent experimental evidences for pressure-induced exciton condensation in intermediate valent Tm[Se,Te] compounds, we re-examine, adopting a BEC-BCS crossover scenario, the formation and stability of exciton insulator versus electron-hole liquid phases.